A text-book of botany / by E. Strasburger [and others] ; translated from the German by H.C. Porter.
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A text-book of botany / by E. Strasburger [and others] ; translated from the German by H.C. Porter. Credit: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.. Public Domain Mark